A Functional Atlas of the Cerebellum Based on NeuroSynth Task Coordinates

Area of Science:

• Neuroscience
• Cognitive Neuroscience

Background:

• The functional organization of the human cerebellum remains largely unmapped, despite its large neuronal population.
• Existing resting-state and task-based parcellations show significant discrepancies.

Purpose of the Study:

• To create a comprehensive task-based functional parcellation of the human cerebellum.
• To reconcile discrepancies between existing cerebellar parcellation methods.
• To associate cerebellar functional networks with specific psychological functions.

Main Methods:

• Utilized the NeuroSynth database, a large-scale functional neuroimaging database.
• Analyzed data from over 44,500 participants across a diverse range of tasks.
• Associated functional activation patterns with ontological key terms for psychological functions.

Main Results:

• Developed a task-based functional parcellation of the cerebellum replicable with prior resting-state findings.
• Confirmed major cerebellar networks including sensorimotor, attention, executive control, and mentalizing networks.
• Identified a unilateral language network and noted less hemispheric symmetry compared to resting-state parcellations.

Conclusions:

• The developed functional parcellation provides a reliable map of cerebellar organization.
• This map aligns with and refines previous resting-state findings.
• The parcellation serves as a valuable reference for designing experiments and interpreting results in cerebellar research.